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Pexip Infinity CVE-2025-32096

HIGH
Reachable Assertion (CWE-617)
2025-12-25 cve@mitre.org
7.5
CVSS 3.1 · Vendor: mitre
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Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata – not a confirmed exploit chain

  1. Access
    Reach exposed signaling interface
  2. Exploit
    Send malformed signaling message
  3. Impact
    Trigger software abort (DoS)

Vulnerability Assessment

Weakness
CWE
ASVS 5.0
V16 - Security Logging and Error Handling Reachable assertion handling
Exploitation Conditions

Exploitation requires network reachability to the Pexip Infinity signaling interface on a vulnerable version (33.0 through 37.0, i.e., any release before 37.1); the attacker sends crafted/malformed signaling input that fails input validation and triggers a software abort. Per the CVSS vector (PR:N/UI:N/AC:L) no authentication, no user interaction, and no special non-default configuration are stated as prerequisites, so default deployments with an exposed signaling endpoint are affected. The principal limiting factor is exposure: impact is confined to availability (A:H, with C:N/I:N), so the risk is service disruption of conferencing rather than compromise, and organizations that restrict signaling-interface reachability reduce the attack surface.

Impact

Signals are internally consistent but modest in urgency. The CVSS 3.1 vector (AV:N/AC:L/PR:N/UI:N) describes a remotely reachable, low-complexity, unauthenticated condition, and the sole impact is availability (C:N/I:N/A:H), yielding 7.5 - a classic reachable-assertion DoS (CWE-617) with no confidentiality or integrity exposure. No EPSS score, SSVC decision, or KEV entry was provided, and there is no public exploit identified at time of analysis, so the evidence for real-world exploitation is absent rather than negative. The practical priority is MODERATE: easy to trigger over the network and service-disrupting for a live video-conferencing platform, but it cannot be used for code execution, data theft, or lateral movement, so it is a availability/uptime concern rather than a breach vector. The CVSS network vector is coherent with the description's reference to 'signaling,' so no vector/description conflict is present; the main missing signals are exploitation-probability data (EPSS) and any POC, which should be monitored.

Exploit ScenarioDerived

A remote, unauthenticated attacker sends a malformed signaling message to an internet-reachable Pexip Infinity node, hitting an improperly validated input path that triggers a software abort. The affected process crashes or restarts, dropping or preventing conferencing sessions; repeated messages can sustain the outage. No public exploit code is known, so an attacker would need to craft the malformed signaling input themselves.

This Week Schedule remediation this week. Why: HIGH severity (CVSS 7.0-8.9).
No patch listed yet 0.3% exploitation probability (EPSS)

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AnalysisAIv1 – Oct 07, 2026

Denial of service in Pexip Infinity 33.0 through 37.0 can be triggered by unauthenticated remote attackers who send crafted signaling input that fails input validation and causes a software abort, taking the affected service down. The CVSS 3.1 vector AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H (score 7.5) confirms network reachability is the main prerequisite and that impact is limited to availability, with no confidentiality or integrity loss. No public exploit identified at time of analysis, and deployments that expose the signaling interface to untrusted networks bear the highest risk.

RemediationAI

Upgrade Pexip Infinity to 37.1 or later; this is the vendor-released fix for CVE-2025-32096, with the vendor security bulletin at https://docs.pexip.com/admin/security_bulletins.htm providing deployment guidance. If immediate upgrade is not possible, restrict network reachability to the Pexip signaling interface to trusted sources using firewall rules, ACLs, or network segmentation; this compensating control reduces exposure but may block legitimate remote endpoints and conferencing clients, so coordinate with affected users. Monitor signaling services for unexpected process aborts or restarts as a detection measure, but do not rely on monitoring as a substitute for patching.

Affects your stack

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Technical ContextAI · show details

Pexip Infinity is a video conferencing and collaboration platform whose signaling component processes call-control messages. The flaw is a reachable assertion (CWE-617) caused by improper input validation: malformed signaling input reaches an abort/assert path and terminates the process, producing a denial-of-service condition. The NVD CPE entry cpe:2.3:a:pexip:pexip_infinity:*:*:*:*:*:*:*:* covers the product but does not encode the version range; the vendor advisory indicates all releases from 33.0 through 37.0 before 37.1 are affected. The CVSS vector (AV:N/AC:L/PR:N/UI:N) indicates exploitation does not require authentication, user interaction, or non-default configuration once the signaling endpoint is network-reachable.

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Severity by source

Vendor (mitre) PRIMARY 7.5 HIGH
AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
vuln.today AI 7.5 HIGH

Signaling is network-reachable and unauthenticated with low complexity (AV:N/AC:L/PR:N/UI:N); a reachable assertion causes a crash, so A:H with no C/I impact.

3.1 AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
4.0 AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

Primary rating from Vendor (mitre).

CVSS VectorVendor: mitre

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High

DescriptionCVE.org

Pexip Infinity 33.0 through 37.0 before 37.1 has improper input validation in signaling that allows an attacker to trigger a software abort, resulting in a denial of service.

Executive ViewAI

Why It Matters

Pexip Infinity versions 33.0 through 37.0 are susceptible to an unauthenticated remote denial-of-service attack that can take the video conferencing service offline, disrupting critical meetings and collaboration across the organization. No public exploit identified at time of analysis and no vendor-released patch identified at time of analysis, leaving exposed deployments at risk of service outages. Leadership should prioritize immediate mitigations to protect business continuity and user productivity.

Business Impact: High
Compensating Controls

Restrict network access to the signaling interface to trusted IP addresses, enable detailed logging and alerting for service crashes, implement network segmentation, deploy intrusion prevention system (IPS) signatures to block crafted signaling packets, and consider temporarily disabling the signaling service if it is not essential for business operations.

Threat Intelligence Overview

EPSS Score
0.3%
Top 78% exploitable
Prevalence
Medium
enterprise video-conferencing platform, common in specific sectors but not everywhere
Data Quality
2 sources
Confidence: Low

How this decision was reached

The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.

SignalValue
Severity HIGH
CISA KEV No
Public POC No
EPSS 0.3%
Patch available No
Active threat No
Deciding rule
HIGH severity (CVSS 7.0-8.9)
What every action level means
Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.
Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.
This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.
This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.
Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.

SSVC AssessmentENISA

SSVC Decision· derived
Scheduled
Exploitation· derived
None
System Exposure· derived
Open
Automatable· derived
Yes
Human Impact
High

Priority Score

38
Low Medium High Critical
KEV: 0
EPSS: 0
CVSS: +38
PoC: 0
Weaponized: 0
Threat intel: 0
Gov advisory: 0

Attack Technique

Denial of Service attacks render applications or systems unavailable by overwhelming resources or triggering failure conditions.

Affected Products (CPE)CVE.org

cpe:2.3:a:pexip:pexip_infinity:*:*:*:*:*:*:*:*
CVE-2014-8779 HIGH POC
7.1 Feb 03

Pexip Infinity before 8 uses the same SSH host keys across different customers' installations, which allows man-in-the-m

CVE-2017-6551 CRITICAL
9.8 May 02

Pexip Infinity before 14.2 allows remote attackers to cause a denial of service (service restart) or execute arbitrary c

CVE-2020-11805 CRITICAL
9.8 Sep 25

Pexip Reverse Proxy and TURN Server before 6.1.0 has Incorrect UDP Access Control via TURN. Rated critical severity (CVS

CVE-2025-59683 CRITICAL
9.1 Dec 25

Improper access control in the Pexip Infinity Secure Scheduler for Exchange service, when configured with deprecated Off

CVE-2022-27933 HIGH
8.2 Jul 17

Pexip Infinity before 27.3 allows remote attackers to trigger a software abort via One Touch Join. Rated high severity (

CVE-2022-26656 HIGH
8.2 Jul 17

Pexip Infinity before 27.3 allows remote attackers to trigger a software abort, and possibly enumerate usernames, via On

CVE-2025-30080 HIGH
7.5 Apr 02

Signalling in Pexip Infinity 29 through 36.2 before 37.0 has improper input validation that allows remote attackers to t

CVE-2024-37917 HIGH
7.5 Apr 02

Pexip Infinity before 35.0 has improper input validation that allows remote attackers to trigger a denial of service (so

CVE-2025-66379 HIGH
7.5 Dec 25

Remote unauthenticated attackers can trigger a software abort (denial of service) in Pexip Infinity media implementation

CVE-2025-66377 HIGH
7.5 Dec 25

Missing authentication for a critical function in Pexip Infinity's product-internal API, present in all releases before

CVE-2025-66378 HIGH
7.5 Dec 25

Unauthenticated remote attackers can forcibly disconnect RTMP streams that traverse a Proxy Node in Pexip Infinity 38.0

CVE-2025-48704 HIGH
7.5 Dec 25

Unauthenticated network attackers can crash Pexip Infinity 35.0 through 37.2 by sending crafted input to its signalling

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